The Wailin' Jennys are an American bluegrass band formed in 2008 in Asheville, North Carolina, known for their energetic performances and harmonies rooted in Appalachian folk traditions. The group features a rotating lineup of talented musicians who blend traditional instrumentation with contemporary arrangements, creating a vibrant sound that honors the legacy of early bluegrass while embracing modern sensibilities. Their discography includes notable live recordings such as Live at the Mauch Chunk Opera House, which captures the band's dynamic stage presence and intricate musical interplay. Songs like Calling All Angels and Bold Riley exemplify their ability to reinterpret classic material with fresh energy, showcasing their commitment to preserving the spirit of the genre while engaging new audiences. The band's work reflects a deep connection to the roots of American music, characterized by spirited vocals, driving fiddles, and a collective performance style that defines their unique place in the bluegrass landscape.